8997985 has 8 divisors (see below), whose sum is σ = 10837440. Its totient is φ = 7171824.

The previous prime is 8997979. The next prime is 8998061. The reversal of 8997985 is 5897998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8997985 - 2⁵ = 8997953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765 + ... + 4594.

It is an arithmetic number, because the mean of its divisors is an integer number (1354680).

Almost surely, 2^8997985 is an apocalyptic number.

It is an amenable number.

8997985 is a deficient number, since it is larger than the sum of its proper divisors (1839455).

8997985 is a wasteful number, since it uses less digits than its factorization.

8997985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6647.

The product of its digits is 1632960, while the sum is 55.

The square root of 8997985 is about 2999.6641478672. The cubic root of 8997985 is about 207.9928575580.

The spelling of 8997985 in words is "eight million, nine hundred ninety-seven thousand, nine hundred eighty-five".